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Registro Completo |
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Biblioteca(s): |
Embrapa Agricultura Digital. |
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Data corrente: |
01/09/2025 |
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Data da última atualização: |
01/09/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RASBOLD, G. G.; LOUZADA, R.; BERGIER, I.; DOMINGOS-LUZ, L.; LO, E. L.; SILVA, A.; GRADELLA, F.; STEVAUX, J. C.; LELI, I. T.; KUERTEN, S.; MCGLUE, M. M. |
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Afiliação: |
GILIANE G. RASBOLD, WESTERN KENTUCKY UNIVERSITY; ROMULLO LOUZADA, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; IVAN BERGIER TAVARES DE LIMA, CNPTIA; LEANDRO DOMINGOS-LUZ, UNIVERSITY OF MINNESOTA; EDWARD L. LO, GEORGIA SOUTHERN UNIVERSITY,; AGUINALDO SILVA, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; FREDERICO GRADELLA, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; JOSÉ C. STEVAUX, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; ISABEL T. LELI, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; SIDNEY KUERTEN, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; MICHAEL M. MCGLUE, UNIVERSITY OF KENTUCKY. |
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Título: |
Hydroclimate change affects tropical lake ecosystems on floodplains in the Pantanal. |
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Ano de publicação: |
2025 |
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Fonte/Imprenta: |
Inland Waters, v. 15, n. 1, 2491903, 2025. |
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DOI: |
https://doi.org/10.1080/20442041.2025.2491903 |
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Idioma: |
Inglês |
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Conteúdo: |
Global climate change, particularly altered precipitation patterns, has significantly impacted tropical ecosystems like floodplain lakes that are highly sensitive to fluctuations in riverine discharge. Here, we investigate the effects of interannual hydrological changes in the Upper Paraguay River on floodplain lake ecosystems in the Pantanal, the largest tropical wetland on Earth. Our analysis includes a time series of river levels (1985–2023), Landsat imagery, and lake sediment geochemistry datasets that untangle connections among river hydrology, lake basin morphology, and the proliferation of aquatic vegetation. Our results found that Lakes Cáceres, Vermelha, Uberaba, and Negra have significant temporal variations in open water habitats. They are particularly vulnerable to hydroclimatic changes because of their flat lake beds and shallow bathymetry, which promote rapid replacement of open water habitats with dense aquatic macrophyte cover during droughts. Lakes Gaíva and Mandioré are more resistant to changes in the Upper Paraguay River level, with a dominance of open water habitats even during severe drought events. Our time series analysis shows the severe drought of 2019–2020 as a tipping point in the Pantanal’s floodplain lake ecosystems, with the analyzed lakes experiencing marked reductions in open water habitat and expansion of aquatic vegetation. Predictive climate models indicate that more frequent, extended drought may result in floodplain lake ecosystem transformations in the coming decades. Low river levels drive transitions in tropical floodplain lakes, leading to macrophyte and terrestrial vegetation expansion and increased fuel accumulation. These changes elevate wildfire risk, reduce aquatic biodiversity, and threaten local livelihoods that depend on fisheries and other ecosystem services. MenosGlobal climate change, particularly altered precipitation patterns, has significantly impacted tropical ecosystems like floodplain lakes that are highly sensitive to fluctuations in riverine discharge. Here, we investigate the effects of interannual hydrological changes in the Upper Paraguay River on floodplain lake ecosystems in the Pantanal, the largest tropical wetland on Earth. Our analysis includes a time series of river levels (1985–2023), Landsat imagery, and lake sediment geochemistry datasets that untangle connections among river hydrology, lake basin morphology, and the proliferation of aquatic vegetation. Our results found that Lakes Cáceres, Vermelha, Uberaba, and Negra have significant temporal variations in open water habitats. They are particularly vulnerable to hydroclimatic changes because of their flat lake beds and shallow bathymetry, which promote rapid replacement of open water habitats with dense aquatic macrophyte cover during droughts. Lakes Gaíva and Mandioré are more resistant to changes in the Upper Paraguay River level, with a dominance of open water habitats even during severe drought events. Our time series analysis shows the severe drought of 2019–2020 as a tipping point in the Pantanal’s floodplain lake ecosystems, with the analyzed lakes experiencing marked reductions in open water habitat and expansion of aquatic vegetation. Predictive climate models indicate that more frequent, extended drought may result in floodplain lake ecosystem transf... Mostrar Tudo |
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Palavras-Chave: |
Hydrological variability; Lagos; Tropical wetlands; Variabilidade hidrológica; Zonas úmidas tropicais. |
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Thesaurus Nal: |
Lakes; Pantanal. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02804naa a2200337 a 4500
001 2178414
005 2025-09-01
008 2025 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/20442041.2025.2491903$2DOI
100 1 $aRASBOLD, G. G.
245 $aHydroclimate change affects tropical lake ecosystems on floodplains in the Pantanal.$h[electronic resource]
260 $c2025
520 $aGlobal climate change, particularly altered precipitation patterns, has significantly impacted tropical ecosystems like floodplain lakes that are highly sensitive to fluctuations in riverine discharge. Here, we investigate the effects of interannual hydrological changes in the Upper Paraguay River on floodplain lake ecosystems in the Pantanal, the largest tropical wetland on Earth. Our analysis includes a time series of river levels (1985–2023), Landsat imagery, and lake sediment geochemistry datasets that untangle connections among river hydrology, lake basin morphology, and the proliferation of aquatic vegetation. Our results found that Lakes Cáceres, Vermelha, Uberaba, and Negra have significant temporal variations in open water habitats. They are particularly vulnerable to hydroclimatic changes because of their flat lake beds and shallow bathymetry, which promote rapid replacement of open water habitats with dense aquatic macrophyte cover during droughts. Lakes Gaíva and Mandioré are more resistant to changes in the Upper Paraguay River level, with a dominance of open water habitats even during severe drought events. Our time series analysis shows the severe drought of 2019–2020 as a tipping point in the Pantanal’s floodplain lake ecosystems, with the analyzed lakes experiencing marked reductions in open water habitat and expansion of aquatic vegetation. Predictive climate models indicate that more frequent, extended drought may result in floodplain lake ecosystem transformations in the coming decades. Low river levels drive transitions in tropical floodplain lakes, leading to macrophyte and terrestrial vegetation expansion and increased fuel accumulation. These changes elevate wildfire risk, reduce aquatic biodiversity, and threaten local livelihoods that depend on fisheries and other ecosystem services.
650 $aLakes
650 $aPantanal
653 $aHydrological variability
653 $aLagos
653 $aTropical wetlands
653 $aVariabilidade hidrológica
653 $aZonas úmidas tropicais
700 1 $aLOUZADA, R.
700 1 $aBERGIER, I.
700 1 $aDOMINGOS-LUZ, L.
700 1 $aLO, E. L.
700 1 $aSILVA, A.
700 1 $aGRADELLA, F.
700 1 $aSTEVAUX, J. C.
700 1 $aLELI, I. T.
700 1 $aKUERTEN, S.
700 1 $aMCGLUE, M. M.
773 $tInland Waters$gv. 15, n. 1, 2491903, 2025.
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Registro original: |
Embrapa Agricultura Digital (CNPTIA) |
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